Exceptions in @Scheduled methods

[ghost]

What happens if an exception is thrown in a @scheduled method? Is the task stopped and all future invocations stopped too? I couldn't find an explanation in a scenario like that. There seems to be a FailedExecution event that is thrown. Can that be handled? If so, how?

[quarkus-bot[bot]]

/cc @mkouba (scheduler)

[mkouba]

What happens if an exception is thrown in a @scheduled method? Is the task stopped and all future invocations stopped too?

Nope, it is not stopped.

We log a message with level ERROR and the text that starts with Error occurred while executing task for trigger....

Furthermore, we fire the FailedExecution CDI event, both synchronously and asynchronously. You can observe these events and inspect the cause:

import jakarta.enterprise.event.Observes;
import jakarta.enterprise.context.ApplicationScoped;

@ApplicationScoped
class MyBean {

   void onFailureSync(@Observes FailedExecution failure) {
      // do something with failure.getException()
   }
}